I've setup a REST api with django rest framework, using mongoengine as the ORM for my models. However, I keep getting this response back from the api for a field that should be optional:
{"ref":["This field may not be null."]}
The problem I'm running into is that it seems like all fields (I'm specifically using ReferenceFields, but I've tried it with StringFields, etc too) are not allowed to be optional/null.
I've tried setting validation methods to an empty lambda (that returns True), setting null=True and required=False where the field is defined in the model.
from mongoengine import *
class B(Document):
...
class A(Document):
ref = ReferenceField('B', null=True, required=False, dbref=False, validation=lambda: True)
I even tried explicitly setting the serializer in A's serializer so that I could tell it to allow nulls (with allow_null=True):
from api.models import A,B
from rest_framework_mongoengine.serializers import DocumentSerializer
class BSerializer(DocumentSerializer):
class Meta:
model = B
depth = 2
class ASerializer(DocumentSerializer):
ref = BSerializer(allow_null=True)
class Meta:
model = A
depth = 2
How do I get optional (nullable) fields to work with django rest framework and mongoengine? Again, this isn't just ReferenceFields, it's the same with any field I try.
